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980ca9380c
removing doge image generation from default base split rest-api into separate modules (base and extensions)
77 lines
3.4 KiB
Python
77 lines
3.4 KiB
Python
from __main__ import app
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from PIL import Image, ImageOps
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from flask import request
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import requests
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import validators
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import logging
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import io
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from utils import flask_utils
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allowed_content_length = 4_000_000
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allowed_image_formats = ['image/png', 'image/jpeg', 'image/jpg', 'image/gif']
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max_off_set = 5
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gif_speedup_factor = 4
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@app.route('/memes/triggered/file.gif') # to directly embed, discord _requires_ this file ending, it seems
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def triggered_animated():
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url = request.args.get('url')
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if not validators.url(url):
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return 'no valid url', 400
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session = requests.Session()
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response = session.head(url)
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content_type = response.headers['content-type']
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if content_type not in allowed_image_formats:
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return f'Incorrect image type {content_type}', 400
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actual_content_length = int(response.headers['content-length'])
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if actual_content_length > allowed_content_length:
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return f'Image too large {actual_content_length}', 400
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image_file = requests.get(url, stream=True)
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input_image = Image.open(io.BytesIO(image_file.content))
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original_input_image = input_image
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old_width, old_height = input_image.size
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with Image.open('resources/img/triggered_footer.jpg') as footer_image:
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footer_width, footer_height = footer_image.size
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footer_ratio = old_width / footer_width
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desired_new_footer_width = int(footer_width * footer_ratio)
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if footer_ratio > 1:
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footer_image = footer_image.resize((desired_new_footer_width, footer_height))
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else:
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footer_image = ImageOps.contain(footer_image, (desired_new_footer_width, footer_height))
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new_footer_width, new_footer_height = footer_image.size
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new_total_height = old_height + new_footer_height
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points = [[0, -max_off_set], [max_off_set, 0], [0, max_off_set], [-max_off_set, 0]]
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if content_type == 'image/gif':
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logging.info(f'Rendering triggered for gif.')
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frame_count = original_input_image.n_frames
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old_frames = []
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for frame_index in range(frame_count):
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input_image.seek(frame_index)
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frame = input_image.convert('RGBA')
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old_frames.append(frame)
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frames = []
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for index, old_frame in enumerate(old_frames):
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off_set = points[index % len(points)]
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frame = Image.new('RGBA', (old_width, new_total_height), (0, 0, 0, 0))
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old_frame = ImageOps.contain(old_frame, (old_width + max_off_set * 2, old_height + max_off_set * 2))
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frame.paste(old_frame, (-max_off_set + off_set[0], -max_off_set + off_set[1]))
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frame.paste(footer_image, (0, old_height))
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frames.append(frame)
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return flask_utils.serve_pil_gif_image(frames, (int(original_input_image.info['duration']) / gif_speedup_factor))
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else:
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input_image = ImageOps.contain(input_image, (old_width + max_off_set * 2, old_height + max_off_set * 2))
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frames = []
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logging.info(f'Rendering triggered for static image.')
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for off_set in points:
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frame = Image.new('RGBA', (old_width, new_total_height), (0, 0, 0, 0))
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frame.paste(input_image, (-max_off_set + off_set[0], -max_off_set + off_set[1]))
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frame.paste(footer_image, (0, old_height))
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frames.append(frame)
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return flask_utils.serve_pil_gif_image(frames)
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